#2A5E77
Closest named color: YInMn Blue (#415A77). oklch(45.8% 0.069 231.8), rgb(42, 94, 119).
Aa
White text reads best on this color (7.08:1).
About this color
#2A5E77 is a medium-dark, muted blue. In OKLCH its lightness is 46%, its chroma 0.069 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.026 away. White text reads best on it, at 7.08:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | muted (0.069) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.96:1 |
| White text | 7.08:1 |
Values
| HEX | #2A5E77 |
| RGB | rgb(42, 94, 119) |
| HSL | hsl(199, 48%, 32%) |
| OKLCH | oklch(45.8% 0.069 231.8) |
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 #2A5E77 | 7.08:1 | AAA | Lc -89.3 | Fine for body text |
| Black text on #2A5E77 | 2.96:1 | Fails | Lc 19.7 | Dividers and decoration only |
| #2A5E77 text on white | 7.08:1 | AAA | Lc 84.4 | Fine for body text |
| #2A5E77 text on black | 2.96:1 | Fails | Lc -17.6 | 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 800.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3EBF0
oklch(93.5% 0.011 234.8)
-
Step 200
200
#CBDCE5
oklch(88.4% 0.022 230.6)
-
Step 300
300
#A8C6D6
oklch(81% 0.039 231.2)
-
Step 400
400
#77A8C2
oklch(70.6% 0.065 232)
-
Step 500
500
#5292B3
oklch(63% 0.082 232.6)
-
Step 600
600
#337C9E
oklch(55.5% 0.089 231.7)
-
Step 700
700
#256987
oklch(49.2% 0.082 231)
-
Step 800
800 (this color)
#2A5E77
oklch(45.8% 0.069 231.8)
-
Step 900
900
#214759
oklch(37.8% 0.053 231)
-
Step 950
950
#142934
oklch(26.9% 0.034 232.8)
#2A5E77 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) | #525D78 | 0.047 |
| Deuteranopia (no green cones) | #475577 | 0.040 |
| Tritanopia (no blue cones) | #006566 | 0.046 |
| Achromatopsia (no color) | #585858 | 0.069 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5E77
#2A5E77
oklch(45.8% 0.069 231.8)
- #764C32
#764C32
oklch(45.8% 0.069 52)
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 #2A5E77, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.026
- Petrol #005F6A ΔE 0.033
- Light Navy Blue #2E5A88 ΔE 0.034
- Denim #3B638C ΔE 0.041
- Deep Sea Blue #015482 ΔE 0.048
- Dark Aqua #05696B ΔE 0.048
- Peacock Blue #016795 ΔE 0.050
- Dusty Grape #545775 ΔE 0.052
Use #2A5E77 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.