#154373
Closest named color: Twilight Blue (#0A437A). oklch(37.9% 0.096 252.6), rgb(21, 67, 115).
Aa
White text reads best on this color (10.08:1).
About this color
#154373 is a dark, moderately saturated blue. In OKLCH its lightness is 38%, its chroma 0.096 and its hue 253°. Its hue sits on the cool side of the wheel. The nearest named color is Twilight Blue (#0A437A), ΔE 0.013 away. White text reads best on it, at 10.08:1.
| Hue family | Blues |
| Lightness | dark (38%) |
| Chroma | moderately saturated (0.096) |
| Temperature | cool |
| Nearest name | Twilight Blue (#0A437A) |
| Black text | 2.08:1 |
| White text | 10.08:1 |
Values
| HEX | #154373 |
| RGB | rgb(21, 67, 115) |
| HSL | hsl(211, 69%, 27%) |
| OKLCH | oklch(37.9% 0.096 252.6) |
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 #154373 | 10.08:1 | AAA | Lc -97.2 | Preferred for body text |
| Black text on #154373 | 2.08:1 | Fails | Lc 10.9 | Not readable |
| #154373 text on white | 10.08:1 | AAA | Lc 93.1 | Preferred for body text |
| #154373 text on black | 2.08:1 | Fails | Lc -9.4 | 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
#F1F6FC
oklch(97.1% 0.01 252.8)
-
Step 100
100
#E0EBF8
oklch(93.6% 0.021 252.5)
-
Step 200
200
#C7DBF3
oklch(88.4% 0.04 253)
-
Step 300
300
#A0C4EE
oklch(80.9% 0.071 252.6)
-
Step 400
400
#6AA4E6
oklch(70.6% 0.115 252.6)
-
Step 500
500
#3F8CDF
oklch(63.1% 0.146 252.6)
-
Step 600
600
#1674CD
oklch(55.6% 0.16 252.7)
-
Step 700
700
#0361B1
oklch(49.1% 0.148 252.5)
-
Step 800
800
#0B4F8F
oklch(42.6% 0.123 252.7)
-
Step 900
900 (this color)
#154373
oklch(37.9% 0.096 252.6)
-
Step 950
950
#0E2743
oklch(26.9% 0.061 253.2)
#154373 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) | #2C4675 | 0.025 |
| Deuteranopia (no green cones) | #1D3E72 | 0.015 |
| Tritanopia (no blue cones) | #004E55 | 0.071 |
| Achromatopsia (no color) | #424242 | 0.096 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154373
#154373
oklch(37.9% 0.096 252.6)
- #5C3A00
#5C3A00
oklch(37.9% 0.081 72.6)
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 #154373, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Twilight Blue #0A437A ΔE 0.013
- Marine Blue #01386A ΔE 0.040
- Light Navy #155084 ΔE 0.045
- Dark Grey Blue #29465B ΔE 0.048
- Cobalt #1E488F ΔE 0.049
- Deep Sea Blue #015482 ΔE 0.053
- Prussian Blue #1D3557 ΔE 0.059
- Charcoal #264653 ΔE 0.060
Use #154373 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.