#004455
Closest named color: Charcoal (#264653). oklch(35.8% 0.066 221.4), rgb(0, 68, 85).
Aa
White text reads best on this color (10.72:1).
About this color
#004455 is a dark, muted teal or cyan. In OKLCH its lightness is 36%, its chroma 0.066 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.028 away. White text reads best on it, at 10.72:1.
| Hue family | Teals and cyans |
| Lightness | dark (36%) |
| Chroma | muted (0.066) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.95:1 |
| White text | 10.72:1 |
Values
| HEX | #004455 |
| RGB | rgb(0, 68, 85) |
| HSL | hsl(192, 100%, 17%) |
| OKLCH | oklch(35.8% 0.066 221.4) |
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 #004455 | 10.72:1 | AAA | Lc -98.4 | Preferred for body text |
| Black text on #004455 | 1.95:1 | Fails | Lc 9.5 | Not readable |
| #004455 text on white | 10.72:1 | AAA | Lc 94.4 | Preferred for body text |
| #004455 text on black | 1.95:1 | Fails | Lc -8.2 | 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
#F1F7F9
oklch(97.2% 0.007 219.6)
-
Step 100
100
#E0ECF1
oklch(93.6% 0.015 224.5)
-
Step 200
200
#C6DEE6
oklch(88.5% 0.028 219.8)
-
Step 300
300
#9EC9D7
oklch(81% 0.049 219.7)
-
Step 400
400
#65ACC4
oklch(70.7% 0.079 221.8)
-
Step 500
500
#3097B5
oklch(63.1% 0.101 221.5)
-
Step 600
600
#00809E
oklch(55.6% 0.103 221.9)
-
Step 700
700
#006C85
oklch(49.2% 0.09 221.2)
-
Step 800
800
#00586D
oklch(42.6% 0.078 221.3)
-
Step 900
900 (this color)
#004455
oklch(35.8% 0.066 221.4)
-
Step 950
950
#0A2B35
oklch(27% 0.042 221.8)
#004455 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) | #3A4256 | 0.053 |
| Deuteranopia (no green cones) | #303B55 | 0.047 |
| Tritanopia (no blue cones) | #00494A | 0.030 |
| Achromatopsia (no color) | #3E3E3E | 0.066 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #004455
#004455
oklch(35.8% 0.066 221.4)
- #593020
#593020
oklch(35.8% 0.065 41.8)
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 #004455, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.028
- Midnight Green #073B4C ΔE 0.030
- Dark Blue Grey #1F3B4D ΔE 0.032
- Dark Grey Blue #29465B ΔE 0.034
- Dark Teal #014D4E ΔE 0.036
- Prussian Blue #1D3557 ΔE 0.051
- Onyx #343A40 ΔE 0.056
- Deep Teal #00555A ΔE 0.056
Use #004455 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.