#223048
Closest named color: Space Cadet (#2B2D42). oklch(30.9% 0.048 260.8), rgb(34, 48, 72).
Aa
White text reads best on this color (13.25:1).
About this color
#223048 is a dark, muted blue. In OKLCH its lightness is 31%, its chroma 0.048 and its hue 261°. Its hue sits on the cool side of the wheel. The nearest named color is Space Cadet (#2B2D42), ΔE 0.017 away. White text reads best on it, at 13.25:1.
| Hue family | Blues |
| Lightness | dark (31%) |
| Chroma | muted (0.048) |
| Temperature | cool |
| Nearest name | Space Cadet (#2B2D42) |
| Black text | 1.58:1 |
| White text | 13.25:1 |
Values
| HEX | #223048 |
| RGB | rgb(34, 48, 72) |
| HSL | hsl(218, 36%, 21%) |
| OKLCH | oklch(30.9% 0.048 260.8) |
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 #223048 | 13.25:1 | AAA | Lc -102.8 | Preferred for body text |
| Black text on #223048 | 1.58:1 | Fails | Lc 0.0 | Not readable |
| #223048 text on white | 13.25:1 | AAA | Lc 99.6 | Preferred for body text |
| #223048 text on black | 1.58:1 | 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 950.
-
Step 50
50
#F3F6FB
oklch(97.2% 0.007 260.7)
-
Step 100
100
#E4EAF5
oklch(93.6% 0.016 262.8)
-
Step 200
200
#CEDAEE
oklch(88.5% 0.03 260.7)
-
Step 300
300
#ACC2E6
oklch(81% 0.056 260.2)
-
Step 400
400
#81A1D9
oklch(70.7% 0.09 261.3)
-
Step 500
500
#6189CF
oklch(63.1% 0.115 261)
-
Step 600
600
#4772BC
oklch(55.7% 0.125 260.6)
-
Step 700
700
#395FA2
oklch(49.1% 0.116 260.9)
-
Step 800
800
#2F4E83
oklch(42.7% 0.096 260.5)
-
Step 900
900
#2A4169
oklch(37.7% 0.075 260.9)
-
Step 950
950 (this color)
#223048
oklch(30.9% 0.048 260.8)
#223048 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) | #273249 | 0.011 |
| Deuteranopia (no green cones) | #232E47 | 0.006 |
| Tritanopia (no blue cones) | #123538 | 0.043 |
| Achromatopsia (no color) | #303030 | 0.048 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #223048
#223048
oklch(30.9% 0.048 260.8)
- #3C2D11
#3C2D11
oklch(30.8% 0.048 81)
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 #223048, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Space Cadet #2B2D42 ΔE 0.017
- Gunmetal #293241 ΔE 0.019
- Prussian Blue #1D3557 ΔE 0.028
- Dark Blue Grey #1F3B4D ΔE 0.035
- Midnight Green #073B4C ΔE 0.039
- Oxford Blue #1B263B ΔE 0.040
- Onyx #343A40 ΔE 0.050
- Marine #042E60 ΔE 0.052
Use #223048 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.