#2B425B
Closest named color: Dark Grey Blue (#29465B). oklch(37.2% 0.052 251.3), rgb(43, 66, 91).
Aa
White text reads best on this color (10.32:1).
About this color
#2B425B is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.052 and its hue 251°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.013 away. White text reads best on it, at 10.32:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.052) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.03:1 |
| White text | 10.32:1 |
Values
| HEX | #2B425B |
| RGB | rgb(43, 66, 91) |
| HSL | hsl(211, 36%, 26%) |
| OKLCH | oklch(37.2% 0.052 251.3) |
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 #2B425B | 10.32:1 | AAA | Lc -97.9 | Preferred for body text |
| Black text on #2B425B | 2.03:1 | Fails | Lc 10.0 | Not readable |
| #2B425B text on white | 10.32:1 | AAA | Lc 93.9 | Preferred for body text |
| #2B425B text on black | 2.03:1 | Fails | Lc -8.6 | 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
#E4EBF1
oklch(93.6% 0.011 243.7)
-
Step 200
200
#CFDAE7
oklch(88.4% 0.022 252.5)
-
Step 300
300
#AFC3DA
oklch(80.9% 0.039 252)
-
Step 400
400
#84A4C7
oklch(70.7% 0.063 251)
-
Step 500
500
#658DB9
oklch(63.2% 0.08 251.5)
-
Step 600
600
#4C76A5
oklch(55.5% 0.087 252.2)
-
Step 700
700
#3C638D
oklch(49% 0.081 251.4)
-
Step 800
800
#325172
oklch(42.6% 0.066 251)
-
Step 900
900 (this color)
#2B425B
oklch(37.2% 0.052 251.3)
-
Step 950
950
#1A2836
oklch(27.1% 0.032 249.1)
#2B425B 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) | #38435C | 0.019 |
| Deuteranopia (no green cones) | #323E5A | 0.014 |
| Tritanopia (no blue cones) | #15484B | 0.045 |
| Achromatopsia (no color) | #404040 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B425B
#2B425B
oklch(37.2% 0.052 251.3)
- #513B20
#513B20
oklch(37% 0.051 70.8)
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 #2B425B, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.013
- Charcoal #264653 ΔE 0.023
- Dark Blue Grey #1F3B4D ΔE 0.035
- Charcoal Grey #3C4142 ΔE 0.047
- Onyx #343A40 ΔE 0.047
- Prussian Blue #1D3557 ΔE 0.047
- Midnight Green #073B4C ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.054
Use #2B425B 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.