#2B4461
Closest named color: Dark Grey Blue (#29465B). oklch(38% 0.059 252.9), rgb(43, 68, 97).
Aa
White text reads best on this color (9.98:1).
About this color
#2B4461 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.059 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.014 away. White text reads best on it, at 9.98:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.059) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.98:1 |
Values
| HEX | #2B4461 |
| RGB | rgb(43, 68, 97) |
| HSL | hsl(212, 39%, 27%) |
| OKLCH | oklch(38% 0.059 252.9) |
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 #2B4461 | 9.98:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #2B4461 | 2.10:1 | Fails | Lc 10.8 | Not readable |
| #2B4461 text on white | 9.98:1 | AAA | Lc 93.1 | Preferred for body text |
| #2B4461 text on black | 2.10:1 | Fails | Lc -9.4 | Not readable |
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 900.
-
Step 50
50
#F3F6F9
oklch(97.2% 0.005 247.9)
-
Step 100
100
#E4EBF2
oklch(93.7% 0.012 248)
-
Step 200
200
#CEDAE9
oklch(88.4% 0.024 254)
-
Step 300
300
#ADC3DD
oklch(80.9% 0.044 252.7)
-
Step 400
400
#81A4CC
oklch(70.7% 0.07 252.1)
-
Step 500
500
#618DBF
oklch(63.2% 0.09 252.4)
-
Step 600
600
#4776AB
oklch(55.6% 0.098 252.6)
-
Step 700
700
#396393
oklch(49.2% 0.091 252.9)
-
Step 800
800
#2F5177
oklch(42.7% 0.075 252.4)
-
Step 900
900 (this color)
#2B4461
oklch(38% 0.059 252.9)
-
Step 950
950
#192738
oklch(26.9% 0.037 253.8)
#2B4461 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) | #384562 | 0.018 |
| Deuteranopia (no green cones) | #324060 | 0.014 |
| Tritanopia (no blue cones) | #0E4B4E | 0.052 |
| Achromatopsia (no color) | #424242 | 0.059 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4461
#2B4461
oklch(38% 0.059 252.9)
- #553D1C
#553D1C
oklch(37.9% 0.059 73.1)
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 #2B4461, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.014
- Charcoal #264653 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.045
- Twilight Blue #0A437A ΔE 0.050
- Prussian Blue #1D3557 ΔE 0.053
- Charcoal Grey #3C4142 ΔE 0.055
- Dark Slate Gray #2F4F4F ΔE 0.055
- Onyx #343A40 ΔE 0.057
Use #2B4461 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.