#2F5B98
Closest named color: Denim Blue (#3B5B92). oklch(47.1% 0.111 257), rgb(47, 91, 152).
Aa
White text reads best on this color (6.83:1).
About this color
#2F5B98 is a medium-dark, moderately saturated blue. In OKLCH its lightness is 47%, its chroma 0.111 and its hue 257°. 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 6.83:1.
| Hue family | Blues |
| Lightness | medium-dark (47%) |
| Chroma | moderately saturated (0.111) |
| Temperature | cool |
| Nearest name | Denim Blue (#3B5B92) |
| Black text | 3.07:1 |
| White text | 6.83:1 |
Values
| HEX | #2F5B98 |
| RGB | rgb(47, 91, 152) |
| HSL | hsl(215, 53%, 39%) |
| OKLCH | oklch(47.1% 0.111 257) |
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 #2F5B98 | 6.83:1 | AA | Lc -88.4 | Fine for body text |
| Black text on #2F5B98 | 3.07:1 | AA large text | Lc 20.7 | Dividers and decoration only |
| #2F5B98 text on white | 6.83:1 | AA | Lc 83.4 | Fine for body text |
| #2F5B98 text on black | 3.07:1 | AA large text | Lc -18.6 | 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 700.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E3EAF4
oklch(93.5% 0.015 257.2)
-
Step 200
200
#CDDAED
oklch(88.4% 0.03 257.8)
-
Step 300
300
#ABC2E4
oklch(80.8% 0.054 258)
-
Step 400
400
#7EA3D6
oklch(70.8% 0.086 256.5)
-
Step 500
500
#5D8BCB
oklch(63.1% 0.109 256.8)
-
Step 600
600
#4374B8
oklch(55.7% 0.119 256.9)
-
Step 700
700 (this color)
#2F5B98
oklch(47.1% 0.111 257)
-
Step 800
800
#2C4F80
oklch(42.6% 0.091 257.1)
-
Step 900
900
#284267
oklch(37.7% 0.071 257.3)
-
Step 950
950
#18273C
oklch(27% 0.044 256.9)
#2F5B98 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) | #3F609A | 0.024 |
| Deuteranopia (no green cones) | #2F5697 | 0.014 |
| Tritanopia (no blue cones) | #006972 | 0.088 |
| Achromatopsia (no color) | #5B5B5B | 0.111 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2F5B98
#2F5B98
oklch(47.1% 0.111 257)
- #7A5200
#7A5200
oklch(47.1% 0.099 76.3)
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 #2F5B98, 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 0.026
- Dusk Blue #26538D ΔE 0.030
- Dusky Blue #475F94 ΔE 0.031
- Denim #3B638C ΔE 0.037
- Peacock Blue #016795 ΔE 0.040
- Twilight #4E518B ΔE 0.045
- Dusk #4E5481 ΔE 0.050
Use #2F5B98 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.