#739BBC
Closest named color: Greyblue (#77A1B5). oklch(67.2% 0.066 243.9), rgb(115, 155, 188).
Aa
Black text reads best on this color (7.14:1).
About this color
#739BBC is a medium-light, muted blue. In OKLCH its lightness is 67%, its chroma 0.066 and its hue 244°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.023 away. Black text reads best on it, at 7.14:1.
| Hue family | Blues |
| Lightness | medium-light (67%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.14:1 |
| White text | 2.93:1 |
Values
| HEX | #739BBC |
| RGB | rgb(115, 155, 188) |
| HSL | hsl(207, 35%, 59%) |
| OKLCH | oklch(67.2% 0.066 243.9) |
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 #739BBC | 2.93:1 | Fails | Lc -61.2 | Content text, not long reading |
| Black text on #739BBC | 7.14:1 | AAA | Lc 48.2 | Large or bold text, headings |
| #739BBC text on white | 2.93:1 | Fails | Lc 55.8 | Large or bold text, headings |
| #739BBC text on black | 7.14:1 | AAA | Lc -46.0 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CDDBE7
oklch(88.4% 0.022 243.8)
-
Step 300
300
#ABC4DA
oklch(80.9% 0.041 244.9)
-
Step 400
400 (this color)
#739BBC
oklch(67.2% 0.066 243.9)
-
Step 500
500
#5B8FB9
oklch(63.1% 0.085 244.1)
-
Step 600
600
#4079A5
oklch(55.7% 0.091 243.8)
-
Step 700
700
#31668D
oklch(49.2% 0.084 243)
-
Step 800
800
#2A5373
oklch(42.7% 0.071 244.1)
-
Step 900
900
#26455D
oklch(37.8% 0.055 243.4)
-
Step 950
950
#172836
oklch(26.9% 0.035 244.4)
#739BBC 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) | #8D9BBE | 0.033 |
| Deuteranopia (no green cones) | #8493BB | 0.028 |
| Tritanopia (no blue cones) | #59A3A6 | 0.054 |
| Achromatopsia (no color) | #969696 | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #739BBC
#739BBC
oklch(67.2% 0.066 243.9)
- #B38E6B
#B38E6B
oklch(67.3% 0.066 64.7)
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 #739BBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.023
- Cool Gray #8D99AE ΔE 0.036
- Bluey Grey #89A0B0 ΔE 0.038
- Bluegrey #85A3B2 ΔE 0.039
- Silver Lake Blue #778DA9 ΔE 0.041
- Blue Grey #758DA3 ΔE 0.046
- Faded Blue #658CBB ΔE 0.048
- Cadet Blue #5F9EA0 ΔE 0.053
Use #739BBC 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.