#2A739C
Closest named color: Muted Blue (#3B719F). oklch(52.9% 0.096 237.4), rgb(42, 115, 156).
Aa
White text reads best on this color (5.20:1).
About this color
#2A739C is a medium-dark, moderately saturated blue. In OKLCH its lightness is 53%, its chroma 0.096 and its hue 237°. Its hue sits on the cool side of the wheel. The nearest named color is Muted Blue (#3B719F), ΔE 0.015 away. White text reads best on it, at 5.20:1.
| Hue family | Blues |
| Lightness | medium-dark (53%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Muted Blue (#3B719F) |
| Black text | 4.03:1 |
| White text | 5.20:1 |
Values
| HEX | #2A739C |
| RGB | rgb(42, 115, 156) |
| HSL | hsl(202, 58%, 39%) |
| OKLCH | oklch(52.9% 0.096 237.4) |
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 #2A739C | 5.20:1 | AA | Lc -80.9 | Fine for body text |
| Black text on #2A739C | 4.03:1 | AA large text | Lc 28.5 | Dividers and decoration only |
| #2A739C text on white | 5.20:1 | AA | Lc 75.5 | Fine for body text |
| #2A739C text on black | 4.03:1 | AA large text | Lc -26.2 | Dividers and decoration only |
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 600.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2EBF1
oklch(93.5% 0.013 236.6)
-
Step 200
200
#CBDCE7
oklch(88.5% 0.024 236)
-
Step 300
300
#A7C5D9
oklch(80.8% 0.043 237.3)
-
Step 400
400
#77A7C7
oklch(70.6% 0.07 238.2)
-
Step 500
500
#5291B8
oklch(63% 0.088 237.5)
-
Step 600
600 (this color)
#2A739C
oklch(52.9% 0.096 237.4)
-
Step 700
700
#25678D
oklch(49% 0.089 238)
-
Step 800
800
#215472
oklch(42.6% 0.073 237.9)
-
Step 900
900
#21465C
oklch(37.7% 0.057 237)
-
Step 950
950
#142936
oklch(27% 0.036 237.4)
#2A739C 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) | #60739E | 0.055 |
| Deuteranopia (no green cones) | #50689B | 0.044 |
| Tritanopia (no blue cones) | #007D81 | 0.062 |
| Achromatopsia (no color) | #6D6D6D | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A739C
#2A739C
oklch(52.9% 0.096 237.4)
- #955C2F
#955C2F
oklch(52.9% 0.096 56.9)
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 #2A739C, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Muted Blue #3B719F ΔE 0.015
- Ocean Blue #03719C ΔE 0.018
- Sea Blue #047495 ΔE 0.020
- Flat Blue #3C73A8 ΔE 0.025
- Dull Blue #49759C ΔE 0.029
- Nice Blue #107AB0 ΔE 0.033
- Ocean #017B92 ΔE 0.035
- Cerulean #457B9D ΔE 0.035
Use #2A739C 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.