#224259
Closest named color: Dark Grey Blue (#29465B). oklch(36.5% 0.055 241.7), rgb(34, 66, 89).
Aa
White text reads best on this color (10.54:1).
About this color
#224259 is a dark, muted blue. In OKLCH its lightness is 37%, its chroma 0.055 and its hue 242°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Grey Blue (#29465B), ΔE 0.016 away. White text reads best on it, at 10.54:1.
| Hue family | Blues |
| Lightness | dark (37%) |
| Chroma | muted (0.055) |
| Temperature | cool |
| Nearest name | Dark Grey Blue (#29465B) |
| Black text | 1.99:1 |
| White text | 10.54:1 |
Values
| HEX | #224259 |
| RGB | rgb(34, 66, 89) |
| HSL | hsl(205, 45%, 24%) |
| OKLCH | oklch(36.5% 0.055 241.7) |
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 #224259 | 10.54:1 | AAA | Lc -98.3 | Preferred for body text |
| Black text on #224259 | 1.99:1 | Fails | Lc 9.6 | Not readable |
| #224259 text on white | 10.54:1 | AAA | Lc 94.3 | Preferred for body text |
| #224259 text on black | 1.99:1 | 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
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E3EBF1
oklch(93.6% 0.012 239.9)
-
Step 200
200
#CCDBE7
oklch(88.4% 0.023 241.9)
-
Step 300
300
#AAC5D9
oklch(81% 0.041 240.1)
-
Step 400
400
#7CA6C7
oklch(70.7% 0.067 242.5)
-
Step 500
500
#5990B8
oklch(63.1% 0.084 241.4)
-
Step 600
600
#3D79A4
oklch(55.5% 0.092 242.1)
-
Step 700
700
#2E668D
oklch(49.1% 0.086 241.9)
-
Step 800
800
#285372
oklch(42.6% 0.07 242.3)
-
Step 900
900 (this color)
#224259
oklch(36.5% 0.055 241.7)
-
Step 950
950
#162936
oklch(27.1% 0.035 239.7)
#224259 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) | #38425A | 0.029 |
| Deuteranopia (no green cones) | #303C59 | 0.024 |
| Tritanopia (no blue cones) | #00484A | 0.044 |
| Achromatopsia (no color) | #3F3F3F | 0.055 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #224259
#224259
oklch(36.5% 0.055 241.7)
- #53381F
#53381F
oklch(36.6% 0.054 62.6)
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 #224259, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Grey Blue #29465B ΔE 0.016
- Charcoal #264653 ΔE 0.020
- Dark Blue Grey #1F3B4D ΔE 0.028
- Midnight Green #073B4C ΔE 0.040
- Prussian Blue #1D3557 ΔE 0.043
- Onyx #343A40 ΔE 0.047
- Dark Teal #014D4E ΔE 0.049
- Charcoal Grey #3C4142 ΔE 0.049
Use #224259 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.