#2A5C91
Closest named color: Light Navy Blue (#2E5A88). oklch(46.7% 0.102 252), rgb(42, 92, 145).
Aa
White text reads best on this color (6.91:1).
About this color
#2A5C91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.102 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy Blue (#2E5A88), ΔE 0.015 away. White text reads best on it, at 6.91:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.102) |
| Temperature | cool |
| Nearest name | Light Navy Blue (#2E5A88) |
| Black text | 3.03:1 |
| White text | 6.91:1 |
Values
| HEX | #2A5C91 |
| RGB | rgb(42, 92, 145) |
| HSL | hsl(211, 55%, 37%) |
| OKLCH | oklch(46.7% 0.102 252) |
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 #2A5C91 | 6.91:1 | AA | Lc -88.6 | Fine for body text |
| Black text on #2A5C91 | 3.03:1 | AA large text | Lc 20.4 | Dividers and decoration only |
| #2A5C91 text on white | 6.91:1 | AA | Lc 83.6 | Fine for body text |
| #2A5C91 text on black | 3.03:1 | AA large text | Lc -18.3 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EBF3
oklch(93.6% 0.014 248)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#AAC3E0
oklch(80.8% 0.049 252.3)
-
Step 400
400
#7DA4D1
oklch(70.7% 0.079 252.5)
-
Step 500
500
#5A8DC5
oklch(63.1% 0.101 251.8)
-
Step 600
600
#3F76B1
oklch(55.6% 0.109 251.8)
-
Step 700
700 (this color)
#2A5C91
oklch(46.7% 0.102 252)
-
Step 800
800
#29517C
oklch(42.7% 0.085 251.9)
-
Step 900
900
#264363
oklch(37.6% 0.065 252.1)
-
Step 950
950
#17283A
oklch(27.1% 0.041 250.8)
#2A5C91 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) | #445F93 | 0.030 |
| Deuteranopia (no green cones) | #355590 | 0.021 |
| Tritanopia (no blue cones) | #00686F | 0.078 |
| Achromatopsia (no color) | #5A5A5A | 0.102 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2A5C91
#2A5C91
oklch(46.7% 0.102 252)
- #7C4F00
#7C4F00
oklch(46.7% 0.1 71.9)
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 #2A5C91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy Blue #2E5A88 ΔE 0.015
- Denim Blue #3B5B92 ΔE 0.017
- Dusk Blue #26538D ΔE 0.027
- Denim #3B638C ΔE 0.031
- Peacock Blue #016795 ΔE 0.034
- Dusky Blue #475F94 ΔE 0.034
- Deep Sea Blue #015482 ΔE 0.043
- Light Navy #155084 ΔE 0.045
Use #2A5C91 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.