#2B4060
Closest named color: Dark Grey Blue (#29465B). oklch(36.9% 0.062 258.6), rgb(43, 64, 96).
Aa
White text reads best on this color (10.47:1).
About this color
#2B4060 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.062 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.023 away. White text reads best on it, at 10.47:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.062) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.00:1 |
| White text | 10.47:1 |
Values
| HEX | #2B4060 |
| RGB | rgb(43, 64, 96) |
| HSL | hsl(216, 38%, 27%) |
| OKLCH | oklch(36.9% 0.062 258.6) |
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 #2B4060 | 10.47:1 | AAA | Lc -98.2 | Preferred for body text |
| Black text on #2B4060 | 2.00:1 | Fails | Lc 9.7 | Not readable |
| #2B4060 text on white | 10.47:1 | AAA | Lc 94.2 | Preferred for body text |
| #2B4060 text on black | 2.00:1 | Fails | Lc -8.3 | 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF3
oklch(93.5% 0.014 258.3)
-
Step 200
200
#CFDAEB
oklch(88.5% 0.026 259)
-
Step 300
300
#AFC2DF
oklch(80.9% 0.046 258.8)
-
Step 400
400
#85A2CF
oklch(70.7% 0.074 259)
-
Step 500
500
#668BC3
oklch(63.2% 0.095 258.5)
-
Step 600
600
#4D74AF
oklch(55.7% 0.102 258.4)
-
Step 700
700
#3E6196
oklch(49.1% 0.095 258.5)
-
Step 800
800
#334F7A
oklch(42.6% 0.08 258.7)
-
Step 900
900 (this color)
#2B4060
oklch(36.9% 0.062 258.6)
-
Step 950
950
#1B2739
oklch(27.1% 0.038 258.3)
#2B4060 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) | #334261 | 0.013 |
| Deuteranopia (no green cones) | #2D3D5F | 0.009 |
| Tritanopia (no blue cones) | #11474B | 0.055 |
| Achromatopsia (no color) | #3F3F3F | 0.062 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B4060
#2B4060
oklch(36.9% 0.062 258.6)
- #513B15
#513B15
oklch(36.9% 0.062 78.3)
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 #2B4060, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.023
- Charcoal #264653 ΔE 0.034
- Dark Blue Grey #1F3B4D ΔE 0.039
- Prussian Blue #1D3557 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.049
- Marine Blue #01386A ΔE 0.051
- Midnight Green #073B4C ΔE 0.053
- Onyx #343A40 ΔE 0.054
Use #2B4060 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.