#739FBC
Closest named color: Greyblue (#77A1B5). oklch(68.1% 0.064 237.8), rgb(115, 159, 188).
Aa
Black text reads best on this color (7.41:1).
About this color
#739FBC is a medium-light, muted blue. In OKLCH its lightness is 68%, its chroma 0.064 and its hue 238°. Its hue sits on the cool side of the wheel. The nearest named color is Greyblue (#77A1B5), ΔE 0.014 away. Black text reads best on it, at 7.41:1.
| Hue family | Blues |
| Lightness | medium-light (68%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Greyblue (#77A1B5) |
| Black text | 7.41:1 |
| White text | 2.83:1 |
Values
| HEX | #739FBC |
| RGB | rgb(115, 159, 188) |
| HSL | hsl(204, 35%, 59%) |
| OKLCH | oklch(68.1% 0.064 237.8) |
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 #739FBC | 2.83:1 | Fails | Lc -59.6 | Large or bold text, headings |
| Black text on #739FBC | 7.41:1 | AAA | Lc 49.7 | Large or bold text, headings |
| #739FBC text on white | 2.83:1 | Fails | Lc 54.3 | Large or bold text, headings |
| #739FBC text on black | 7.41:1 | AAA | Lc -47.5 | 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
#CCDCE6
oklch(88.5% 0.022 235)
-
Step 300
300
#A9C5D8
oklch(80.9% 0.041 237.7)
-
Step 400
400 (this color)
#739FBC
oklch(68.1% 0.064 237.8)
-
Step 500
500
#5791B5
oklch(63.1% 0.082 237.2)
-
Step 600
600
#3A7BA1
oklch(55.7% 0.089 237)
-
Step 700
700
#2C678A
oklch(49.1% 0.083 237.9)
-
Step 800
800
#265470
oklch(42.7% 0.069 238)
-
Step 900
900
#24465B
oklch(37.8% 0.054 237.6)
-
Step 950
950
#162935
oklch(27.1% 0.033 237.5)
#739FBC 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) | #929EBD | 0.039 |
| Deuteranopia (no green cones) | #8896BC | 0.034 |
| Tritanopia (no blue cones) | #58A6A8 | 0.050 |
| Achromatopsia (no color) | #999999 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #739FBC
#739FBC
oklch(68.1% 0.064 237.8)
- #B78F72
#B78F72
oklch(68% 0.063 57.4)
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 #739FBC, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Greyblue #77A1B5 ΔE 0.014
- Bluegrey #85A3B2 ΔE 0.030
- Bluey Grey #89A0B0 ΔE 0.032
- Cool Gray #8D99AE ΔE 0.036
- Cadet Blue #5F9EA0 ΔE 0.050
- Silver Lake Blue #778DA9 ΔE 0.050
- Blue Grey #758DA3 ΔE 0.054
- Cool Steel #97A7B3 ΔE 0.055
Use #739FBC 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.