#2A5E79
Closest named color: YInMn Blue (#415A77). oklch(45.9% 0.071 233.9), rgb(42, 94, 121).
Aa
White text reads best on this color (7.05:1).
About this color
#2A5E79 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 46%, its chroma 0.071 and its hue 234°. Its hue sits on the cool side of the wheel. The nearest named color is YInMn Blue (#415A77), ΔE 0.025 away. White text reads best on it, at 7.05:1.
| Hue family | Blues |
| Lightness | medium-dark (46%) |
| Chroma | moderately saturated (0.071) |
| Temperature | cool |
| Nearest name | YInMn Blue (#415A77) |
| Black text | 2.97:1 |
| White text | 7.05:1 |
Values
| HEX | #2A5E79 |
| RGB | rgb(42, 94, 121) |
| HSL | hsl(201, 48%, 32%) |
| OKLCH | oklch(45.9% 0.071 233.9) |
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 #2A5E79 | 7.05:1 | AAA | Lc -89.2 | Fine for body text |
| Black text on #2A5E79 | 2.97:1 | Fails | Lc 19.8 | Dividers and decoration only |
| #2A5E79 text on white | 7.05:1 | AAA | Lc 84.3 | Fine for body text |
| #2A5E79 text on black | 2.97:1 | Fails | Lc -17.7 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CBDCE6
oklch(88.5% 0.023 233.4)
-
Step 300
300
#A7C6D8
oklch(81% 0.042 233.5)
-
Step 400
400
#77A8C4
oklch(70.7% 0.066 234)
-
Step 500
500
#5292B5
oklch(63.1% 0.084 234.2)
-
Step 600
600
#337CA1
oklch(55.7% 0.092 234)
-
Step 700
700
#24688A
oklch(49.1% 0.086 234.4)
-
Step 800
800 (this color)
#2A5E79
oklch(45.9% 0.071 233.9)
-
Step 900
900
#20465A
oklch(37.6% 0.055 233.9)
-
Step 950
950
#142935
oklch(26.9% 0.035 235.2)
#2A5E79 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) | #515D7A | 0.045 |
| Deuteranopia (no green cones) | #465579 | 0.039 |
| Tritanopia (no blue cones) | #006567 | 0.047 |
| Achromatopsia (no color) | #595959 | 0.071 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5E79
#2A5E79
oklch(45.9% 0.071 233.9)
- #764C30
#764C30
oklch(45.7% 0.071 53.7)
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 #2A5E79, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- YInMn Blue #415A77 ΔE 0.025
- Light Navy Blue #2E5A88 ΔE 0.031
- Petrol #005F6A ΔE 0.036
- Denim #3B638C ΔE 0.038
- Deep Sea Blue #015482 ΔE 0.046
- Peacock Blue #016795 ΔE 0.047
- Denim Blue #3B5B92 ΔE 0.049
- Dark Aqua #05696B ΔE 0.050
Use #2A5E79 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.