#737BE0
Closest named color: Soft Blue (#6488EA). oklch(62.4% 0.151 277.7), rgb(115, 123, 224).
Aa
Black text reads best on this color (5.63:1).
About this color
#737BE0 is a medium-light, vivid blue. In OKLCH its lightness is 62%, its chroma 0.151 and its hue 278°. Its hue sits on the cool side of the wheel. The nearest named color is Soft Blue (#6488EA), ΔE 0.036 away. Black text reads best on it, at 5.63:1.
| Hue family | Blues |
| Lightness | medium-light (62%) |
| Chroma | vivid (0.151) |
| Temperature | cool |
| Nearest name | Soft Blue (#6488EA) |
| Black text | 5.63:1 |
| White text | 3.72:1 |
Values
| HEX | #737BE0 |
| RGB | rgb(115, 123, 224) |
| HSL | hsl(236, 64%, 66%) |
| OKLCH | oklch(62.4% 0.151 277.7) |
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 #737BE0 | 3.72:1 | AA large text | Lc -70.1 | Content text, not long reading |
| Black text on #737BE0 | 5.63:1 | AA | Lc 39.4 | Non-text elements, placeholder text |
| #737BE0 text on white | 3.72:1 | AA large text | Lc 64.6 | Content text, not long reading |
| #737BE0 text on black | 5.63:1 | AA | Lc -37.0 | 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
#F4F5FC
oklch(97.1% 0.009 279.7)
-
Step 100
100
#E6E9F8
oklch(93.6% 0.02 276.9)
-
Step 200
200
#D2D7F5
oklch(88.5% 0.042 278)
-
Step 300
300
#B5BDF0
oklch(81% 0.073 277.7)
-
Step 400
400
#8F99E9
oklch(70.7% 0.117 277.5)
-
Step 500
500 (this color)
#737BE0
oklch(62.4% 0.151 277.7)
-
Step 600
600
#5F64D0
oklch(55.5% 0.163 277.7)
-
Step 700
700
#4F52B4
oklch(49% 0.152 277.9)
-
Step 800
800
#404492
oklch(42.7% 0.126 277.4)
-
Step 900
900
#363A74
oklch(37.6% 0.098 277.6)
-
Step 950
950
#202244
oklch(26.9% 0.063 278.8)
#737BE0 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) | #5189E4 | 0.048 |
| Deuteranopia (no green cones) | #4780DE | 0.050 |
| Tritanopia (no blue cones) | #4990A3 | 0.131 |
| Achromatopsia (no color) | #848484 | 0.151 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #737BE0
#737BE0
oklch(62.4% 0.151 277.7)
- #9D8700
#9D8700
oklch(62.5% 0.129 97.6)
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 #737BE0, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Soft Blue #6488EA ΔE 0.036
- Cornflower #6A79F7 ΔE 0.037
- Medium Purple #9370DB ΔE 0.052
- Medium Slate Blue #7B68EE ΔE 0.053
- Lavender Blue #8B88F8 ΔE 0.059
- Periwinkle #8E82FE ΔE 0.062
- Perrywinkle #8F8CE7 ΔE 0.062
- Dark Sky Blue #448EE4 ΔE 0.064
Use #737BE0 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.