#739FFB
Closest named color: Periwinkle Blue (#8F99FB). oklch(71.1% 0.143 263.8), rgb(115, 159, 251).
Aa
Black text reads best on this color (8.08:1).
About this color
#739FFB is a medium-light, vivid blue. In OKLCH its lightness is 71%, its chroma 0.143 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Periwinkle Blue (#8F99FB), ΔE 0.035 away. Black text reads best on it, at 8.08:1.
| Hue family | Blues |
| Lightness | medium-light (71%) |
| Chroma | vivid (0.143) |
| Temperature | cool |
| Nearest name | Periwinkle Blue (#8F99FB) |
| Black text | 8.08:1 |
| White text | 2.59:1 |
Values
| HEX | #739FFB |
| RGB | rgb(115, 159, 251) |
| HSL | hsl(221, 94%, 72%) |
| OKLCH | oklch(71.1% 0.143 263.8) |
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 #739FFB | 2.59:1 | Fails | Lc -55.7 | Large or bold text, headings |
| Black text on #739FFB | 8.08:1 | AAA | Lc 53.4 | Large or bold text, headings |
| #739FFB text on white | 2.59:1 | Fails | Lc 50.6 | Large or bold text, headings |
| #739FFB text on black | 8.08:1 | AAA | Lc -51.3 | Large or bold text, headings |
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 400.
-
Step 50
50
#F1F6FE
oklch(97.2% 0.012 259.8)
-
Step 100
100
#E1EAFC
oklch(93.6% 0.026 264.4)
-
Step 200
200
#C8DAFB
oklch(88.5% 0.05 262.6)
-
Step 300
300
#A3C1FB
oklch(81% 0.089 263.3)
-
Step 400
400 (this color)
#739FFB
oklch(71.1% 0.143 263.8)
-
Step 500
500
#4E82F7
oklch(63.1% 0.184 263.9)
-
Step 600
600
#3368E6
oklch(55.6% 0.2 263.8)
-
Step 700
700
#2656C8
oklch(49.2% 0.185 263.7)
-
Step 800
800
#2147A1
oklch(42.7% 0.153 263.8)
-
Step 900
900
#1F3D80
oklch(37.8% 0.119 263.6)
-
Step 950
950
#13244B
oklch(27% 0.076 264.2)
#739FFB 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) | #7AA7FF | 0.023 |
| Deuteranopia (no green cones) | #699BF9 | 0.016 |
| Tritanopia (no blue cones) | #22B3C1 | 0.129 |
| Achromatopsia (no color) | #A1A1A1 | 0.143 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #739FFB
#739FFB
oklch(71.1% 0.143 263.8)
- #CC980E
#CC980E
oklch(71% 0.143 83.5)
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 #739FFB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Periwinkle Blue #8F99FB ΔE 0.035
- Cornflower Blue #6495ED ΔE 0.037
- Chefchaouen Blue #4895EF ΔE 0.055
- Perrywinkle #8F8CE7 ΔE 0.058
- Lavender Blue #8B88F8 ΔE 0.061
- Soft Blue #6488EA ΔE 0.066
- Carolina Blue #8AB8FE ΔE 0.074
- Dark Sky Blue #448EE4 ΔE 0.075
Use #739FFB 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.