#739FDB
Closest named color: Cornflower Blue (#6495ED). oklch(69.5% 0.101 256.3), rgb(115, 159, 219).
Aa
Black text reads best on this color (7.71:1).
About this color
#739FDB is a medium-light, moderately saturated blue. In OKLCH its lightness is 69%, its chroma 0.101 and its hue 256°. Its hue sits on the cool side of the wheel. The nearest named color is Cornflower Blue (#6495ED), ΔE 0.046 away. Black text reads best on it, at 7.71:1.
| Hue family | Blues |
| Lightness | medium-light (69%) |
| Chroma | moderately saturated (0.101) |
| Temperature | cool |
| Nearest name | Cornflower Blue (#6495ED) |
| Black text | 7.71:1 |
| White text | 2.72:1 |
Values
| HEX | #739FDB |
| RGB | rgb(115, 159, 219) |
| HSL | hsl(215, 59%, 65%) |
| OKLCH | oklch(69.5% 0.101 256.3) |
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 #739FDB | 2.72:1 | Fails | Lc -57.9 | Large or bold text, headings |
| Black text on #739FDB | 7.71:1 | AAA | Lc 51.4 | Large or bold text, headings |
| #739FDB text on white | 2.72:1 | Fails | Lc 52.6 | Large or bold text, headings |
| #739FDB text on black | 7.71:1 | AAA | Lc -49.2 | 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
#F2F6FB
oklch(97.2% 0.008 253.9)
-
Step 100
100
#E2EBF6
oklch(93.7% 0.018 253.3)
-
Step 200
200
#CBDBF1
oklch(88.6% 0.035 256.3)
-
Step 300
300
#A7C3EA
oklch(81% 0.063 256.7)
-
Step 400
400 (this color)
#739FDB
oklch(69.5% 0.101 256.3)
-
Step 500
500
#528BD6
oklch(63.2% 0.129 255.9)
-
Step 600
600
#3673C3
oklch(55.6% 0.14 256.3)
-
Step 700
700
#2860A9
oklch(49.1% 0.131 256.4)
-
Step 800
800
#234F89
oklch(42.8% 0.108 256.4)
-
Step 900
900
#21426D
oklch(37.7% 0.084 255.9)
-
Step 950
950
#142740
oklch(27% 0.053 255.8)
#739FDB 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) | #88A2DE | 0.028 |
| Deuteranopia (no green cones) | #7C98DA | 0.020 |
| Tritanopia (no blue cones) | #46ACB4 | 0.089 |
| Achromatopsia (no color) | #9D9D9D | 0.101 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #739FDB
#739FDB
oklch(69.5% 0.101 256.3)
- #C19450
#C19450
oklch(69.5% 0.101 76.1)
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 #739FDB, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cornflower Blue #6495ED ΔE 0.046
- Greyblue #77A1B5 ΔE 0.059
- Chefchaouen Blue #4895EF ΔE 0.062
- Periwinkle Blue #8F99FB ΔE 0.065
- Perrywinkle #8F8CE7 ΔE 0.065
- Faded Blue #658CBB ΔE 0.067
- Bluegrey #85A3B2 ΔE 0.068
- Bluey Grey #89A0B0 ΔE 0.069
Use #739FDB 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.