#004C6A
Closest named color: Dark Grey Blue (#29465B). oklch(39.2% 0.081 233.4), rgb(0, 76, 106).
Aa
White text reads best on this color (9.36:1).
About this color
#004C6A is a dark, moderately saturated blue. In OKLCH its lightness is 39%, its chroma 0.081 and its hue 233°. 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 9.36:1.
| Hue family | Blues |
| Lightness | dark (39%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 2.24:1 |
| White text | 9.36:1 |
Values
| HEX | #004C6A |
| RGB | rgb(0, 76, 106) |
| HSL | hsl(197, 100%, 21%) |
| OKLCH | oklch(39.2% 0.081 233.4) |
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 #004C6A | 9.36:1 | AAA | Lc -95.5 | Preferred for body text |
| Black text on #004C6A | 2.24:1 | Fails | Lc 12.8 | Not readable |
| #004C6A text on white | 9.36:1 | AAA | Lc 91.1 | Preferred for body text |
| #004C6A text on black | 2.24:1 | Fails | Lc -11.2 | 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
#C4DEEC
oklch(88.6% 0.034 231.2)
-
Step 300
300
#9AC8E2
oklch(80.9% 0.061 233.3)
-
Step 400
400
#5DABD4
oklch(70.7% 0.098 233.4)
-
Step 500
500
#1A95C8
oklch(63.1% 0.124 233)
-
Step 600
600
#007DAC
oklch(55.5% 0.116 233.8)
-
Step 700
700
#006991
oklch(49% 0.102 233.6)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900 (this color)
#004C6A
oklch(39.2% 0.081 233.4)
-
Step 950
950
#052A3B
oklch(26.9% 0.051 233.3)
#004C6A 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) | #3D4B6B | 0.051 |
| Deuteranopia (no green cones) | #30436A | 0.041 |
| Tritanopia (no blue cones) | #005456 | 0.049 |
| Achromatopsia (no color) | #464646 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004C6A
#004C6A
oklch(39.2% 0.081 233.4)
- #673816
#673816
oklch(39.3% 0.081 53.4)
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 #004C6A, 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
- Charcoal #264653 ΔE 0.042
- Twilight Blue #0A437A ΔE 0.043
- Deep Sea Blue #015482 ΔE 0.044
- Deep Teal #00555A ΔE 0.046
- Light Navy #155084 ΔE 0.046
- Dark Teal #014D4E ΔE 0.050
- Dark Slate Gray #2F4F4F ΔE 0.057
Use #004C6A 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.