#738CEF
Closest named color: Soft Blue (#6488EA). oklch(66.6% 0.149 271.2), rgb(115, 140, 239).
Aa
Black text reads best on this color (6.72:1).
About this color
#738CEF is a medium-light, vivid blue. In OKLCH its lightness is 67%, its chroma 0.149 and its hue 271°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.023 away. Black text reads best on it, at 6.72:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | vivid (0.149) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 6.72:1 |
| White text | 3.12:1 |
Values
| HEX | #738CEF |
| RGB | rgb(115, 140, 239) |
| HSL | hsl(228, 79%, 69%) |
| OKLCH | oklch(66.6% 0.149 271.2) |
Contrast
WCAG 2 contrast ratios are the conformance target: AA needs 4.5:1 for body text and 3:1 for large text, AAA needs 7:1. APCA Lc values are supplementary guidance from the WCAG 3 drafts.
| Pair | WCAG 2 | Result | APCA | APCA guidance |
|---|---|---|---|---|
| White text on #738CEF | 3.12:1 | AA large text | Lc -63.5 | Content text, not long reading |
| Black text on #738CEF | 6.72:1 | AA | Lc 46.0 | Large or bold text, headings |
| #738CEF text on white | 3.12:1 | AA large text | Lc 58.1 | Large or bold text, headings |
| #738CEF text on black | 6.72:1 | AA | Lc -43.7 | Non-text elements, placeholder text |
Tints and shades
A 50–950 scale built in OKLCH: the hue is held, lightness follows a Tailwind v4-like curve, and every step is kept inside the sRGB gamut. This color sits at step 500.
-
Step 50
50
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E4E9F9
oklch(93.5% 0.022 272.1)
-
Step 200
200
#CFD8F5
oklch(88.4% 0.041 271.9)
-
Step 300
300
#AFBFF1
oklch(81% 0.073 270.9)
-
Step 400
400
#869CEA
oklch(70.8% 0.117 271.2)
-
Step 500
500 (this color)
#738CEF
oklch(66.6% 0.149 271.2)
-
Step 600
600
#5268D1
oklch(55.5% 0.163 271.3)
-
Step 700
700
#4356B5
oklch(49.1% 0.151 271.3)
-
Step 800
800
#374793
oklch(42.7% 0.126 271.2)
-
Step 900
900
#2F3C75
oklch(37.6% 0.098 271.3)
-
Step 950
950
#1C2444
oklch(27.1% 0.06 271.3)
#738CEF with color blindness
Simulated with the Machado et al. (2009) model. ΔE is how far the color moves: below about 0.02 you would not notice a change.
| Vision | Seen as | Shift (ΔE) |
|---|---|---|
| Protanopia (no red cones) | #6397F3 | 0.031 |
| Deuteranopia (no green cones) | #558DED | 0.033 |
| Tritanopia (no blue cones) | #39A1B2 | 0.133 |
| Achromatopsia (no color) | #929292 | 0.150 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #738CEF
#738CEF
oklch(66.6% 0.149 271.2)
- #B39000
#B39000
oklch(66.7% 0.136 91.4)
Analogous
Neighbouring hues, 30° either side.
Split complementary
The two hues beside the complement (150° and 210°).
Triadic
Three hues spaced 120° apart.
Palettes with this color
Curated palettes that contain a color within ΔE 0.04 (OKLab) of #738CEF, closest first.
No curated palette has a color within ΔE 0.04 of #738CEF.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.023
- Cornflower Blue #6495ED ΔE 0.028
- Lavender Blue #8B88F8 ΔE 0.036
- Perrywinkle #8F8CE7 ΔE 0.038
- Chefchaouen Blue #4895EF ΔE 0.045
- Periwinkle #8E82FE ΔE 0.049
- Dark Sky Blue #448EE4 ΔE 0.051
- Cornflower #6A79F7 ΔE 0.054
Use #738CEF in your product
Turn it into light and dark UI roles checked for contrast, then export to Tailwind v4, shadcn/ui, CSS or design tokens.