#224B59
Closest named color: Charcoal (#264653). oklch(39% 0.051 222.9), rgb(34, 75, 89).
Aa
White text reads best on this color (9.46:1).
About this color
#224B59 is a dark, muted teal or cyan. In OKLCH its lightness is 39%, its chroma 0.051 and its hue 223°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.016 away. White text reads best on it, at 9.46:1.
| Hue family | Teals and cyans |
| Lightness | dark (39%) |
| Chroma | muted (0.051) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 2.21:1 |
| White text | 9.46:1 |
Values
| HEX | #224B59 |
| RGB | rgb(34, 75, 89) |
| HSL | hsl(195, 45%, 24%) |
| OKLCH | oklch(39% 0.051 222.9) |
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 #224B59 | 9.46:1 | AAA | Lc -96.0 | Preferred for body text |
| Black text on #224B59 | 2.21:1 | Fails | Lc 12.2 | Not readable |
| #224B59 text on white | 9.46:1 | AAA | Lc 91.7 | Preferred for body text |
| #224B59 text on black | 2.21:1 | Fails | Lc -10.6 | 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
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E2ECEF
oklch(93.6% 0.011 217.5)
-
Step 200
200
#CBDDE4
oklch(88.6% 0.022 223)
-
Step 300
300
#A7C7D3
oklch(81% 0.038 222.5)
-
Step 400
400
#75AABD
oklch(70.8% 0.062 222.4)
-
Step 500
500
#4E94AC
oklch(63% 0.079 222.7)
-
Step 600
600
#2E7E98
oklch(55.6% 0.086 223.3)
-
Step 700
700
#1F6A82
oklch(49% 0.08 223.8)
-
Step 800
800
#1D5769
oklch(42.8% 0.066 222.2)
-
Step 900
900 (this color)
#224B59
oklch(39% 0.051 222.9)
-
Step 950
950
#132A32
oklch(27% 0.033 222.8)
#224B59 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) | #43495A | 0.042 |
| Deuteranopia (no green cones) | #3B4359 | 0.038 |
| Tritanopia (no blue cones) | #004F4F | 0.032 |
| Achromatopsia (no color) | #464646 | 0.052 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224B59
#224B59
oklch(39% 0.051 222.9)
- #5C3C2E
#5C3C2E
oklch(39% 0.051 44.4)
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 #224B59, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.016
- Dark Grey Blue #29465B ΔE 0.018
- Dark Slate Gray #2F4F4F ΔE 0.028
- Dark Teal #014D4E ΔE 0.031
- Deep Teal #00555A ΔE 0.035
- Dark Blue Green #005249 ΔE 0.046
- Charcoal Grey #3C4142 ΔE 0.048
- Dark Blue Grey #1F3B4D ΔE 0.053
Use #224B59 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.