#154C6F
Closest named color: Deep Sea Blue (#015482). oklch(39.9% 0.081 241.5), rgb(21, 76, 111).
Aa
White text reads best on this color (9.14:1).
About this color
#154C6F is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.081 and its hue 241°. Its hue sits on the cool side of the wheel. The nearest named color is Deep Sea Blue (#015482), ΔE 0.036 away. White text reads best on it, at 9.14:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.081) |
| Temperature | cool |
| Nearest name | Deep Sea Blue (#015482) |
| Black text | 2.29:1 |
| White text | 9.14:1 |
Values
| HEX | #154C6F |
| RGB | rgb(21, 76, 111) |
| HSL | hsl(203, 68%, 26%) |
| OKLCH | oklch(39.9% 0.081 241.5) |
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 #154C6F | 9.14:1 | AAA | Lc -95.1 | Preferred for body text |
| Black text on #154C6F | 2.29:1 | Fails | Lc 13.2 | Not readable |
| #154C6F text on white | 9.14:1 | AAA | Lc 90.8 | Preferred for body text |
| #154C6F text on black | 2.29:1 | Fails | Lc -11.6 | 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
#F1F6FB
oklch(97.1% 0.009 247.9)
-
Step 100
100
#E0ECF5
oklch(93.7% 0.018 240)
-
Step 200
200
#C6DDEE
oklch(88.6% 0.034 239.9)
-
Step 300
300
#9EC6E5
oklch(80.8% 0.061 241.8)
-
Step 400
400
#66A8D8
oklch(70.7% 0.098 241.6)
-
Step 500
500
#3591CE
oklch(63% 0.125 242)
-
Step 600
600
#007AB8
oklch(55.5% 0.131 241.7)
-
Step 700
700
#00679C
oklch(49.2% 0.116 241.5)
-
Step 800
800
#005480
oklch(42.6% 0.1 241.3)
-
Step 900
900 (this color)
#154C6F
oklch(39.9% 0.081 241.5)
-
Step 950
950
#0B293D
oklch(27% 0.051 241.6)
#154C6F 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) | #3C4D71 | 0.041 |
| Deuteranopia (no green cones) | #2F446E | 0.031 |
| Tritanopia (no blue cones) | #005558 | 0.056 |
| Achromatopsia (no color) | #484848 | 0.081 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154C6F
#154C6F
oklch(39.9% 0.081 241.5)
- #663C11
#663C11
oklch(39.9% 0.081 61.7)
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 #154C6F, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Deep Sea Blue #015482 ΔE 0.036
- Light Navy #155084 ΔE 0.036
- Dark Grey Blue #29465B ΔE 0.036
- Twilight Blue #0A437A ΔE 0.038
- Charcoal #264653 ΔE 0.047
- Deep Teal #00555A ΔE 0.053
- Dusk Blue #26538D ΔE 0.055
- Cobalt #1E488F ΔE 0.058
Use #154C6F 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.