#223C44
Closest named color: Dark Blue Grey (#1F3B4D). oklch(33.9% 0.035 219.5), rgb(34, 60, 68).
Aa
White text reads best on this color (11.68:1).
About this color
#223C44 is a dark, muted teal or cyan. In OKLCH its lightness is 34%, its chroma 0.035 and its hue 220°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.018 away. White text reads best on it, at 11.68:1.
| Hue family | Teals and cyans |
| Lightness | dark (34%) |
| Chroma | muted (0.035) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.79:1 |
| White text | 11.68:1 |
Values
| HEX | #223C44 |
| RGB | rgb(34, 60, 68) |
| HSL | hsl(194, 33%, 20%) |
| OKLCH | oklch(33.9% 0.035 219.5) |
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 #223C44 | 11.68:1 | AAA | Lc -100.4 | Preferred for body text |
| Black text on #223C44 | 1.79:1 | Fails | Lc 0.0 | Not readable |
| #223C44 text on white | 11.68:1 | AAA | Lc 96.8 | Preferred for body text |
| #223C44 text on black | 1.79:1 | Fails | Lc 0.0 | 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
#F3F6F7
oklch(97.1% 0.003 219.5)
-
Step 100
100
#E5EBED
oklch(93.6% 0.007 219.6)
-
Step 200
200
#CFDCE0
oklch(88.6% 0.015 218.1)
-
Step 300
300
#AFC5CC
oklch(80.9% 0.026 218.9)
-
Step 400
400
#84A7B3
oklch(70.6% 0.042 220.8)
-
Step 500
500
#6492A0
oklch(63.2% 0.054 218.8)
-
Step 600
600
#4A7C8B
oklch(55.7% 0.059 219.1)
-
Step 700
700
#3B6876
oklch(49.1% 0.054 220)
-
Step 800
800
#315560
oklch(42.7% 0.045 219.5)
-
Step 900
900 (this color)
#223C44
oklch(33.9% 0.035 219.5)
-
Step 950
950
#1A292E
oklch(27% 0.022 220.6)
#223C44 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) | #373B44 | 0.030 |
| Deuteranopia (no green cones) | #323744 | 0.026 |
| Tritanopia (no blue cones) | #133F3E | 0.023 |
| Achromatopsia (no color) | #383838 | 0.035 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223C44
#223C44
oklch(33.9% 0.035 219.5)
- #48322A
#48322A
oklch(34% 0.035 40.8)
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 #223C44, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.018
- Onyx #343A40 ΔE 0.025
- Midnight Green #073B4C ΔE 0.026
- Gunmetal #293241 ΔE 0.033
- Charcoal #264653 ΔE 0.038
- Charcoal Grey #3C4142 ΔE 0.043
- Prussian Blue #1D3557 ΔE 0.047
- Dark Grey Blue #29465B ΔE 0.048
Use #223C44 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.