#2F5D91
Closest named color: Denim Blue (#3B5B92). oklch(47.1% 0.099 253.1), rgb(47, 93, 145).
Aa
White text reads best on this color (6.78:1).
About this color
#2F5D91 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.099 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Denim Blue (#3B5B92), ΔE 0.013 away. White text reads best on it, at 6.78:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.099) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.09:1 |
| White text | 6.78:1 |
Values
| HEX | #2F5D91 |
| RGB | rgb(47, 93, 145) |
| HSL | hsl(212, 51%, 38%) |
| OKLCH | oklch(47.1% 0.099 253.1) |
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 #2F5D91 | 6.78:1 | AA | Lc -88.2 | Fine for body text |
| Black text on #2F5D91 | 3.09:1 | AA large text | Lc 20.9 | Dividers and decoration only |
| #2F5D91 text on white | 6.78:1 | AA | Lc 83.2 | Fine for body text |
| #2F5D91 text on black | 3.09:1 | AA large text | Lc -18.8 | 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
#E4EBF3
oklch(93.7% 0.013 251.6)
-
Step 200
200
#CDDBEB
oklch(88.6% 0.027 251.7)
-
Step 300
300
#ABC3DF
oklch(80.8% 0.048 252.4)
-
Step 400
400
#7FA4D0
oklch(70.8% 0.077 253.2)
-
Step 500
500
#5E8CC3
oklch(63% 0.098 253.6)
-
Step 600
600
#4376B0
oklch(55.7% 0.106 252.9)
-
Step 700
700 (this color)
#2F5D91
oklch(47.1% 0.099 253.1)
-
Step 800
800
#2C517B
oklch(42.8% 0.082 252.9)
-
Step 900
900
#284363
oklch(37.7% 0.064 253.6)
-
Step 950
950
#18273A
oklch(26.9% 0.041 254.8)
#2F5D91 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 | 0.028 |
| Deuteranopia (no green cones) | #385790 | 0.018 |
| Tritanopia (no blue cones) | #006970 | 0.078 |
| Achromatopsia (no color) | #5B5B5B | 0.099 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5D91
#2F5D91
oklch(47.1% 0.099 253.1)
- #7C5104
#7C5104
oklch(47.1% 0.099 73.3)
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 #2F5D91, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Denim Blue #3B5B92 ΔE 0.013
- Light Navy Blue #2E5A88 ΔE 0.016
- Denim #3B638C ΔE 0.026
- Dusky Blue #475F94 ΔE 0.029
- Dusk Blue #26538D ΔE 0.032
- Peacock Blue #016795 ΔE 0.033
- YInMn Blue #415A77 ΔE 0.044
- Dusk #4E5481 ΔE 0.045
Use #2F5D91 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.