#2D5D91
Closest named color: Denim Blue (#3B5B92). oklch(47.1% 0.1 252.3), rgb(45, 93, 145).
Aa
White text reads best on this color (6.80:1).
About this color
#2D5D91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.100 and its hue 252°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.015 away. White text reads best on it, at 6.80:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.100) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.08:1 |
| White text | 6.80:1 |
Values
| HEX | #2D5D91 |
| RGB | rgb(45, 93, 145) |
| HSL | hsl(211, 53%, 37%) |
| OKLCH | oklch(47.1% 0.1 252.3) |
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 #2D5D91 | 6.80:1 | AA | Lc -88.3 | Fine for body text |
| Black text on #2D5D91 | 3.08:1 | AA large text | Lc 20.8 | Dividers and decoration only |
| #2D5D91 text on white | 6.80:1 | AA | Lc 83.2 | Fine for body text |
| #2D5D91 text on black | 3.08:1 | AA large text | Lc -18.7 | 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 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
#ABC3E0
oklch(80.9% 0.049 253.3)
-
Step 400
400
#7EA4D0
oklch(70.7% 0.077 252.5)
-
Step 500
500
#5C8DC4
oklch(63.2% 0.099 252.2)
-
Step 600
600
#4176B0
oklch(55.6% 0.107 252.2)
-
Step 700
700 (this color)
#2D5D91
oklch(47.1% 0.1 252.3)
-
Step 800
800
#2B517B
oklch(42.7% 0.083 252.4)
-
Step 900
900
#274363
oklch(37.6% 0.065 252.8)
-
Step 950
950
#17283A
oklch(27.1% 0.041 250.8)
#2D5D91 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) | #466093 | 0.030 |
| Deuteranopia (no green cones) | #385790 | 0.019 |
| Tritanopia (no blue cones) | #006970 | 0.077 |
| Achromatopsia (no color) | #5B5B5B | 0.100 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2D5D91
#2D5D91
oklch(47.1% 0.1 252.3)
- #7D5002
#7D5002
oklch(47.1% 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 #2D5D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.015
- Light Navy Blue #2E5A88 ΔE 0.016
- Denim #3B638C ΔE 0.027
- Dusky Blue #475F94 ΔE 0.030
- Dusk Blue #26538D ΔE 0.031
- Peacock Blue #016795 ΔE 0.032
- YInMn Blue #415A77 ΔE 0.044
- Deep Sea Blue #015482 ΔE 0.046
Use #2D5D91 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.