#344088
Closest named color: Cobalt (#1E488F). oklch(40.2% 0.12 272.7), rgb(52, 64, 136).
Aa
White text reads best on this color (9.39:1).
About this color
#344088 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.120 and its hue 273°. Its hue sits on the cool side of the wheel. The nearest named color is Cobalt (#1E488F), ΔE 0.030 away. White text reads best on it, at 9.39:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.120) |
| Temperature | cool |
| Nearest name | Cobalt (#1E488F) |
| Black text | 2.23:1 |
| White text | 9.39:1 |
Values
| HEX | #344088 |
| RGB | rgb(52, 64, 136) |
| HSL | hsl(231, 45%, 37%) |
| OKLCH | oklch(40.2% 0.12 272.7) |
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 #344088 | 9.39:1 | AAA | Lc -95.8 | Preferred for body text |
| Black text on #344088 | 2.23:1 | Fails | Lc 12.5 | Not readable |
| #344088 text on white | 9.39:1 | AAA | Lc 91.5 | Preferred for body text |
| #344088 text on black | 2.23:1 | Fails | Lc -10.9 | 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
#F3F5FC
oklch(97.1% 0.01 273.4)
-
Step 100
100
#E5E9F8
oklch(93.5% 0.021 274)
-
Step 200
200
#D0D8F4
oklch(88.5% 0.04 272.9)
-
Step 300
300
#B1BEEF
oklch(80.8% 0.071 273.1)
-
Step 400
400
#899CE7
oklch(70.8% 0.112 272.4)
-
Step 500
500
#6D81DF
oklch(63.1% 0.143 272.6)
-
Step 600
600
#5668CD
oklch(55.5% 0.156 272.7)
-
Step 700
700
#4756B2
oklch(49.1% 0.146 272.9)
-
Step 800
800 (this color)
#344088
oklch(40.2% 0.12 272.7)
-
Step 900
900
#313C73
oklch(37.6% 0.095 272.6)
-
Step 950
950
#1D2443
oklch(27.1% 0.058 272.4)
#344088 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) | #174A8B | 0.036 |
| Deuteranopia (no green cones) | #024387 | 0.040 |
| Tritanopia (no blue cones) | #00515D | 0.106 |
| Achromatopsia (no color) | #464646 | 0.120 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #344088
#344088
oklch(40.2% 0.12 272.7)
- #584600
#584600
oklch(40.2% 0.082 92)
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 #344088, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Cobalt #1E488F ΔE 0.030
- Dark Slate Blue #483D8B ΔE 0.031
- Blueberry #464196 ΔE 0.036
- Twilight Blue #0A437A ΔE 0.046
- Light Navy #155084 ΔE 0.051
- Dusk Blue #26538D ΔE 0.053
- Twilight #4E518B ΔE 0.065
- Deep Sea Blue #015482 ΔE 0.066
Use #344088 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.