#154257
Closest named color: Charcoal (#264653). oklch(35.9% 0.06 232.3), rgb(21, 66, 87).
Aa
White text reads best on this color (10.77:1).
About this color
#154257 is a dark, muted blue. In OKLCH its lightness is 36%, its chroma 0.060 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Charcoal (#264653), ΔE 0.024 away. White text reads best on it, at 10.77:1.
| Hue family | Blues |
| Lightness | dark (36%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Charcoal (#264653) |
| Black text | 1.94:1 |
| White text | 10.77:1 |
Values
| HEX | #154257 |
| RGB | rgb(21, 66, 87) |
| HSL | hsl(199, 61%, 21%) |
| OKLCH | oklch(35.9% 0.06 232.3) |
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 #154257 | 10.77:1 | AAA | Lc -98.7 | Preferred for body text |
| Black text on #154257 | 1.94:1 | Fails | Lc 9.2 | Not readable |
| #154257 text on white | 10.77:1 | AAA | Lc 94.7 | Preferred for body text |
| #154257 text on black | 1.94:1 | Fails | Lc -7.9 | 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 900.
-
Step 50
50
#F2F6F9
oklch(97.1% 0.006 239.8)
-
Step 100
100
#E2ECF1
oklch(93.7% 0.013 228.9)
-
Step 200
200
#CADCE7
oklch(88.4% 0.025 234.5)
-
Step 300
300
#A4C6D9
oklch(80.8% 0.045 232.5)
-
Step 400
400
#71A9C6
oklch(70.7% 0.072 231.7)
-
Step 500
500
#4893B8
oklch(63.1% 0.093 232.3)
-
Step 600
600
#257DA4
oklch(55.7% 0.1 232.2)
-
Step 700
700
#15698D
oklch(49.1% 0.094 232.8)
-
Step 800
800
#165672
oklch(42.8% 0.077 232)
-
Step 900
900 (this color)
#154257
oklch(35.9% 0.06 232.3)
-
Step 950
950
#112A36
oklch(27.1% 0.038 231.3)
#154257 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) | #384158 | 0.040 |
| Deuteranopia (no green cones) | #2F3B57 | 0.034 |
| Tritanopia (no blue cones) | #004849 | 0.038 |
| Achromatopsia (no color) | #3E3E3E | 0.061 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #154257
#154257
oklch(35.9% 0.06 232.3)
- #56331D
#56331D
oklch(35.9% 0.061 51.8)
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 #154257, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Charcoal #264653 ΔE 0.024
- Dark Blue Grey #1F3B4D ΔE 0.025
- Dark Grey Blue #29465B ΔE 0.026
- Midnight Green #073B4C ΔE 0.030
- Prussian Blue #1D3557 ΔE 0.042
- Dark Teal #014D4E ΔE 0.045
- Onyx #343A40 ΔE 0.050
- Marine Blue #01386A ΔE 0.053
Use #154257 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.