#124057
Closest named color: Dark Blue Grey (#1F3B4D). oklch(35.2% 0.063 234.6), rgb(18, 64, 87).
Aa
White text reads best on this color (11.07:1).
About this color
#124057 is a dark, muted blue. In OKLCH its lightness is 35%, its chroma 0.063 and its hue 235°. 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 11.07:1.
| Hue family | Blues |
| Lightness | dark (35%) |
| Chroma | muted (0.063) |
| Temperature | cool |
| Nearest name | Dark Blue Grey (#1F3B4D) |
| Black text | 1.89:1 |
| White text | 11.07:1 |
Values
| HEX | #124057 |
| RGB | rgb(18, 64, 87) |
| HSL | hsl(200, 66%, 21%) |
| OKLCH | oklch(35.2% 0.063 234.6) |
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 #124057 | 11.07:1 | AAA | Lc -99.2 | Preferred for body text |
| Black text on #124057 | 1.89:1 | Fails | Lc 8.6 | Not readable |
| #124057 text on white | 11.07:1 | AAA | Lc 95.3 | Preferred for body text |
| #124057 text on black | 1.89:1 | Fails | Lc -7.3 | 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
#E2ECF2
oklch(93.7% 0.013 233.7)
-
Step 200
200
#C9DCE8
oklch(88.4% 0.026 235.4)
-
Step 300
300
#A4C6DB
oklch(80.9% 0.047 235.3)
-
Step 400
400
#71A9C9
oklch(70.8% 0.075 234.4)
-
Step 500
500
#4793BB
oklch(63.2% 0.096 234.1)
-
Step 600
600
#227CA7
oklch(55.5% 0.105 234.6)
-
Step 700
700
#126990
oklch(49.2% 0.098 234.5)
-
Step 800
800
#155574
oklch(42.6% 0.08 234.8)
-
Step 900
900 (this color)
#124057
oklch(35.2% 0.063 234.6)
-
Step 950
950
#112A37
oklch(27.2% 0.039 233.4)
#124057 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) | #353F58 | 0.039 |
| Deuteranopia (no green cones) | #2B3957 | 0.032 |
| Tritanopia (no blue cones) | #004648 | 0.039 |
| Achromatopsia (no color) | #3C3C3C | 0.063 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124057
#124057
oklch(35.2% 0.063 234.6)
- #543119
#543119
oklch(35.1% 0.063 53.6)
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 #124057, 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 0.031
- Dark Grey Blue #29465B ΔE 0.032
- Prussian Blue #1D3557 ΔE 0.036
- Marine Blue #01386A ΔE 0.048
- Onyx #343A40 ΔE 0.051
- Dark Teal #014D4E ΔE 0.051
Use #124057 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.