#2B364D
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.4% 0.044 264.5), rgb(43, 54, 77).
Aa
White text reads best on this color (12.08:1).
About this color
#2B364D is a dark, muted blue. In OKLCH its lightness is 33%, its chroma 0.044 and its hue 264°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.021 away. White text reads best on it, at 12.08:1.
| Hue family | Blues |
| Lightness | dark (33%) |
| Chroma | muted (0.044) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.73:1 |
| White text | 12.08:1 |
Values
| HEX | #2B364D |
| RGB | rgb(43, 54, 77) |
| HSL | hsl(221, 28%, 24%) |
| OKLCH | oklch(33.4% 0.044 264.5) |
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 #2B364D | 12.08:1 | AAA | Lc -101.1 | Preferred for body text |
| Black text on #2B364D | 1.73:1 | Fails | Lc 0.0 | Not readable |
| #2B364D text on white | 12.08:1 | AAA | Lc 97.6 | Preferred for body text |
| #2B364D text on black | 1.73:1 | Fails | Lc 0.0 | 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
#F4F5F8
oklch(97% 0.004 271.4)
-
Step 100
100
#E7EAF0
oklch(93.6% 0.009 264.5)
-
Step 200
200
#D3D9E6
oklch(88.5% 0.019 266)
-
Step 300
300
#B6C1D6
oklch(80.9% 0.032 263.5)
-
Step 400
400
#90A1C2
oklch(70.7% 0.052 263.6)
-
Step 500
500
#7589B3
oklch(63% 0.068 264.8)
-
Step 600
600
#5E739E
oklch(55.6% 0.072 264.1)
-
Step 700
700
#4D6087
oklch(49% 0.067 264.1)
-
Step 800
800
#404F6E
oklch(42.8% 0.055 264.3)
-
Step 900
900 (this color)
#2B364D
oklch(33.4% 0.044 264.5)
-
Step 950
950
#202634
oklch(26.9% 0.028 266.5)
#2B364D 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) | #2E384E | 0.008 |
| Deuteranopia (no green cones) | #2B354C | 0.003 |
| Tritanopia (no blue cones) | #203B3E | 0.039 |
| Achromatopsia (no color) | #363636 | 0.044 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2B364D
#2B364D
oklch(33.4% 0.044 264.5)
- #41341B
#41341B
oklch(33.3% 0.043 82.7)
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 #2B364D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.021
- Gunmetal #293241 ΔE 0.023
- Prussian Blue #1D3557 ΔE 0.026
- Space Cadet #2B2D42 ΔE 0.031
- Onyx #343A40 ΔE 0.033
- Midnight Green #073B4C ΔE 0.037
- Charcoal #264653 ΔE 0.051
- Dark Grey Blue #29465B ΔE 0.051
Use #2B364D 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.