#004B6A
Closest named color: Dark Grey Blue (#29465B). oklch(38.9% 0.082 234.6), rgb(0, 75, 106).
Aa
White text reads best on this color (9.48:1).
About this color
#004B6A is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.082 and its hue 235°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.034 away. White text reads best on it, at 9.48:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.082) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.21:1 |
| White text | 9.48:1 |
Values
| HEX | #004B6A |
| RGB | rgb(0, 75, 106) |
| HSL | hsl(198, 100%, 21%) |
| OKLCH | oklch(38.9% 0.082 234.6) |
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 #004B6A | 9.48:1 | AAA | Lc -95.7 | Preferred for body text |
| Black text on #004B6A | 2.21:1 | Fails | Lc 12.5 | Not readable |
| #004B6A text on white | 9.48:1 | AAA | Lc 91.4 | Preferred for body text |
| #004B6A text on black | 2.21:1 | Fails | Lc -10.9 | 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
#F0F6FA
oklch(97% 0.008 236.6)
-
Step 100
100
#DFECF4
oklch(93.6% 0.018 234.5)
-
Step 200
200
#C4DDED
oklch(88.4% 0.035 235.9)
-
Step 300
300
#9AC8E3
oklch(80.9% 0.062 234.3)
-
Step 400
400
#5DABD5
oklch(70.8% 0.099 234.1)
-
Step 500
500
#1D94CA
oklch(63% 0.126 234.9)
-
Step 600
600
#007DAD
oklch(55.6% 0.117 234.3)
-
Step 700
700
#006992
oklch(49.1% 0.103 234.3)
-
Step 800
800
#005679
oklch(42.8% 0.09 234.7)
-
Step 900
900 (this color)
#004B6A
oklch(38.9% 0.082 234.6)
-
Step 950
950
#052A3C
oklch(27% 0.052 234.9)
#004B6A 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) | #3C4B6B | 0.050 |
| Deuteranopia (no green cones) | #2E4269 | 0.040 |
| Tritanopia (no blue cones) | #005356 | 0.049 |
| Achromatopsia (no color) | #464646 | 0.082 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004B6A
#004B6A
oklch(38.9% 0.082 234.6)
- #663713
#663713
oklch(38.9% 0.082 54.3)
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 #004B6A, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.034
- Twilight Blue #0A437A ΔE 0.041
- Charcoal #264653 ΔE 0.042
- Deep Sea Blue #015482 ΔE 0.045
- Light Navy #155084 ΔE 0.047
- Deep Teal #00555A ΔE 0.049
- Dark Teal #014D4E ΔE 0.052
- Dark Slate Gray #2F4F4F ΔE 0.059
Use #004B6A 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.