#2C4367
Closest named color: Dark Grey Blue (#29465B). oklch(38.2% 0.068 259.1), rgb(44, 67, 103).
Aa
White text reads best on this color (9.97:1).
About this color
#2C4367 is a dark, muted blue. In OKLCH its lightness is 38%, its chroma 0.068 and its hue 259°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.026 away. White text reads best on it, at 9.97:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | muted (0.068) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.10:1 |
| White text | 9.97:1 |
Values
| HEX | #2C4367 |
| RGB | rgb(44, 67, 103) |
| HSL | hsl(217, 40%, 29%) |
| OKLCH | oklch(38.2% 0.068 259.1) |
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 #2C4367 | 9.97:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #2C4367 | 2.10:1 | Fails | Lc 10.9 | Not readable |
| #2C4367 text on white | 9.97:1 | AAA | Lc 93.0 | Preferred for body text |
| #2C4367 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
#F3F6FA
oklch(97.2% 0.006 255.5)
-
Step 100
100
#E4EAF4
oklch(93.5% 0.015 260.7)
-
Step 200
200
#CEDAEC
oklch(88.5% 0.028 258.4)
-
Step 300
300
#ADC2E2
oklch(80.9% 0.051 258.7)
-
Step 400
400
#82A2D4
oklch(70.7% 0.082 259.2)
-
Step 500
500
#628AC9
oklch(63.1% 0.106 259.2)
-
Step 600
600
#4973B5
oklch(55.6% 0.113 259.1)
-
Step 700
700
#3A609C
oklch(49% 0.106 259.2)
-
Step 800
800
#304F7F
oklch(42.8% 0.088 258.9)
-
Step 900
900 (this color)
#2C4367
oklch(38.2% 0.068 259.1)
-
Step 950
950
#19273C
oklch(27.1% 0.044 258.3)
#2C4367 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) | #354669 | 0.016 |
| Deuteranopia (no green cones) | #2D4066 | 0.009 |
| Tritanopia (no blue cones) | #0A4B50 | 0.061 |
| Achromatopsia (no color) | #424242 | 0.068 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #2C4367
#2C4367
oklch(38.2% 0.068 259.1)
- #563E11
#563E11
oklch(38.2% 0.068 79.4)
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 #2C4367, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.026
- Charcoal #264653 ΔE 0.040
- Twilight Blue #0A437A ΔE 0.041
- Dark Blue Grey #1F3B4D ΔE 0.052
- Prussian Blue #1D3557 ΔE 0.054
- Marine Blue #01386A ΔE 0.055
- Light Navy #155084 ΔE 0.056
- Deep Sea Blue #015482 ΔE 0.062
Use #2C4367 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.