#124C78
Closest named color: Light Navy (#155084). oklch(40.4% 0.094 246.5), rgb(18, 76, 120).
Aa
White text reads best on this color (9.01:1).
About this color
#124C78 is a dark, moderately saturated blue. In OKLCH its lightness is 40%, its chroma 0.094 and its hue 247°. Its hue sits on the cool side of the wheel. The nearest named color is Light Navy (#155084), ΔE 0.022 away. White text reads best on it, at 9.01:1.
| Hue family | Blues |
| Lightness | dark (40%) |
| Chroma | moderately saturated (0.094) |
| Temperature | cool |
| Nearest name | Light Navy (#155084) |
| Black text | 2.33:1 |
| White text | 9.01:1 |
Values
| HEX | #124C78 |
| RGB | rgb(18, 76, 120) |
| HSL | hsl(206, 74%, 27%) |
| OKLCH | oklch(40.4% 0.094 246.5) |
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 #124C78 | 9.01:1 | AAA | Lc -94.8 | Preferred for body text |
| Black text on #124C78 | 2.33:1 | Fails | Lc 13.7 | Not readable |
| #124C78 text on white | 9.01:1 | AAA | Lc 90.3 | Preferred for body text |
| #124C78 text on black | 2.33:1 | Fails | Lc -12.0 | 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 800.
-
Step 50
50
#F2F6FA
oklch(97.1% 0.007 247.9)
-
Step 100
100
#E2EBF4
oklch(93.6% 0.016 248)
-
Step 200
200
#CADCED
oklch(88.6% 0.03 246.6)
-
Step 300
300
#A5C5E3
oklch(81% 0.055 246.8)
-
Step 400
400
#72A6D4
oklch(70.6% 0.087 246.1)
-
Step 500
500
#4B8FC9
oklch(63.1% 0.112 246.5)
-
Step 600
600
#2A78B6
oklch(55.5% 0.122 246.7)
-
Step 700
700
#1C659D
oklch(49.2% 0.113 246.6)
-
Step 800
800 (this color)
#124C78
oklch(40.4% 0.094 246.5)
-
Step 900
900
#1C4566
oklch(37.8% 0.073 245.8)
-
Step 950
950
#12283C
oklch(26.9% 0.047 247.8)
#124C78 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) | #374E7A | 0.036 |
| Deuteranopia (no green cones) | #284577 | 0.025 |
| Tritanopia (no blue cones) | #00575C | 0.067 |
| Achromatopsia (no color) | #494949 | 0.094 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #124C78
#124C78
oklch(40.4% 0.094 246.5)
- #683D00
#683D00
oklch(40.3% 0.089 66.6)
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 #124C78, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Light Navy #155084 ΔE 0.022
- Deep Sea Blue #015482 ΔE 0.026
- Twilight Blue #0A437A ΔE 0.029
- Dusk Blue #26538D ΔE 0.043
- Cobalt #1E488F ΔE 0.043
- Dark Grey Blue #29465B ΔE 0.050
- Light Navy Blue #2E5A88 ΔE 0.055
- Charcoal #264653 ΔE 0.062
Use #124C78 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.