#124155
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.4% 0.06 230.4), rgb(18, 65, 85).
Aa
White text reads best on this color (10.97:1).
About this color
#124155 is a dark, muted blue. In OKLCH its lightness is 35%, its chroma 0.060 and its hue 230°. Its hue sits on the cool side of the wheel. The nearest named color is Dark Blue Grey (#1F3B4D), ΔE 0.022 away. White text reads best on it, at 10.97:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | muted (0.060) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.91:1 |
| White text | 10.97:1 |
Values
| HEX | #124155 |
| RGB | rgb(18, 65, 85) |
| HSL | hsl(198, 65%, 20%) |
| OKLCH | oklch(35.4% 0.06 230.4) |
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 #124155 | 10.97:1 | AAA | Lc -99.0 | Preferred for body text |
| Black text on #124155 | 1.91:1 | Fails | Lc 8.8 | Not readable |
| #124155 text on white | 10.97:1 | AAA | Lc 95.2 | Preferred for body text |
| #124155 text on black | 1.91:1 | Fails | Lc -7.5 | 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
#C9DDE7
oklch(88.6% 0.025 229.2)
-
Step 300
300
#A4C7D9
oklch(81% 0.045 230.4)
-
Step 400
400
#70A9C5
oklch(70.6% 0.072 230.4)
-
Step 500
500
#4794B7
oklch(63.2% 0.092 230.3)
-
Step 600
600
#217DA3
oklch(55.5% 0.101 230.9)
-
Step 700
700
#116A8B
oklch(49.2% 0.093 229.7)
-
Step 800
800
#145671
oklch(42.6% 0.077 230.6)
-
Step 900
900 (this color)
#124155
oklch(35.4% 0.06 230.4)
-
Step 950
950
#102A36
oklch(27.1% 0.039 230.5)
#124155 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) | #374056 | 0.042 |
| Deuteranopia (no green cones) | #2E3955 | 0.037 |
| Tritanopia (no blue cones) | #004748 | 0.036 |
| Achromatopsia (no color) | #3C3C3C | 0.060 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124155
#124155
oklch(35.4% 0.06 230.4)
- #54321D
#54321D
oklch(35.4% 0.059 51.5)
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 #124155, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Dark Blue Grey #1F3B4D ΔE 0.022
- Midnight Green #073B4C ΔE 0.025
- Charcoal #264653 ΔE 0.027
- Dark Grey Blue #29465B ΔE 0.031
- Prussian Blue #1D3557 ΔE 0.040
- Dark Teal #014D4E ΔE 0.046
- Onyx #343A40 ΔE 0.049
- Marine Blue #01386A ΔE 0.053
Use #124155 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.