#22478E
Closest named color: Cobalt (#1E488F). oklch(41.3% 0.125 261.8), rgb(34, 71, 142).
Aa
White text reads best on this color (8.89:1).
About this color
#22478E is a dark, moderately saturated blue. In OKLCH its lightness is 41%, its chroma 0.125 and its hue 262°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.004 away. White text reads best on it, at 8.89:1.
| Hue family | Blues |
| Lightness | dark (41%) |
| Chroma | moderately saturated (0.125) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.35:1 |
| White text | 8.89:1 |
Values
| HEX | #22478E |
| RGB | rgb(34, 71, 142) |
| HSL | hsl(219, 61%, 35%) |
| OKLCH | oklch(41.3% 0.125 261.8) |
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 #22478E | 8.89:1 | AAA | Lc -94.5 | Preferred for body text |
| Black text on #22478E | 2.35:1 | Fails | Lc 14.0 | Not readable |
| #22478E text on white | 8.89:1 | AAA | Lc 90.0 | Preferred for body text |
| #22478E text on black | 2.35:1 | Fails | Lc -12.3 | 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 800.
-
Step 50
50
#F2F6FC
oklch(97.2% 0.009 258.3)
-
Step 100
100
#E2EAF9
oklch(93.5% 0.022 263.2)
-
Step 200
200
#CBDAF5
oklch(88.6% 0.041 262.3)
-
Step 300
300
#A7C1F1
oklch(80.8% 0.074 262.5)
-
Step 400
400
#78A0EA
oklch(70.7% 0.118 262.1)
-
Step 500
500
#5587E3
oklch(63.2% 0.149 261.6)
-
Step 600
600
#3A6ED1
oklch(55.6% 0.163 261.8)
-
Step 700
700
#2D5BB5
oklch(49% 0.152 262.1)
-
Step 800
800 (this color)
#22478E
oklch(41.3% 0.125 261.8)
-
Step 900
900
#233F75
oklch(37.6% 0.099 262.1)
-
Step 950
950
#152644
oklch(27.1% 0.061 261)
#22478E 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) | #1F4F91 | 0.022 |
| Deuteranopia (no green cones) | #00458D | 0.022 |
| Tritanopia (no blue cones) | #005863 | 0.100 |
| Achromatopsia (no color) | #4A4A4A | 0.125 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #22478E
#22478E
oklch(41.3% 0.125 261.8)
- #624500
#624500
oklch(41.2% 0.085 81.2)
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 #22478E, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.004
- Light Navy #155084 ΔE 0.033
- Dusk Blue #26538D ΔE 0.036
- Twilight Blue #0A437A ΔE 0.040
- Deep Sea Blue #015482 ΔE 0.047
- Blueberry #464196 ΔE 0.049
- Dark Slate Blue #483D8B ΔE 0.052
- Sapphire #2138AB ΔE 0.061
Use #22478E 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.