#123A46
Closest named color: Midnight Green (#073B4C). oklch(32.6% 0.049 221.2), rgb(18, 58, 70).
Aa
White text reads best on this color (12.21:1).
About this color
#123A46 is a dark, muted teal or cyan. In OKLCH its lightness is 33%, its chroma 0.049 and its hue 221°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.011 away. White text reads best on it, at 12.21:1.
| Hue family | Teals and cyans |
| Lightness | dark (33%) |
| Chroma | muted (0.049) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.71:1 |
| White text | 12.21:1 |
Values
| HEX | #123A46 |
| RGB | rgb(18, 58, 70) |
| HSL | hsl(194, 59%, 17%) |
| OKLCH | oklch(32.6% 0.049 221.2) |
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 #123A46 | 12.21:1 | AAA | Lc -101.2 | Preferred for body text |
| Black text on #123A46 | 1.71:1 | Fails | Lc 0.0 | Not readable |
| #123A46 text on white | 12.21:1 | AAA | Lc 97.7 | Preferred for body text |
| #123A46 text on black | 1.71:1 | Fails | Lc 0.0 | 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 900.
-
Step 50
50
#F2F6F8
oklch(97.1% 0.005 228.8)
-
Step 100
100
#E3ECEF
oklch(93.7% 0.01 219.6)
-
Step 200
200
#CBDDE3
oklch(88.6% 0.021 219.7)
-
Step 300
300
#A8C7D1
oklch(81% 0.036 219.3)
-
Step 400
400
#78A9BA
oklch(70.6% 0.058 221.5)
-
Step 500
500
#5294A9
oklch(63.1% 0.074 220.7)
-
Step 600
600
#337E95
oklch(55.6% 0.081 221.4)
-
Step 700
700
#246A7F
oklch(49% 0.076 221.6)
-
Step 800
800
#205767
oklch(42.8% 0.063 220.4)
-
Step 900
900 (this color)
#123A46
oklch(32.6% 0.049 221.2)
-
Step 950
950
#142A31
oklch(27% 0.031 220.6)
#123A46 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) | #333847 | 0.040 |
| Deuteranopia (no green cones) | #2C3346 | 0.036 |
| Tritanopia (no blue cones) | #003E3E | 0.025 |
| Achromatopsia (no color) | #353535 | 0.049 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #123A46
#123A46
oklch(32.6% 0.049 221.2)
- #4A2C21
#4A2C21
oklch(32.8% 0.049 40.9)
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 #123A46, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.011
- Dark Blue Grey #1F3B4D ΔE 0.019
- Gunmetal #293241 ΔE 0.034
- Prussian Blue #1D3557 ΔE 0.040
- Onyx #343A40 ΔE 0.042
- Space Cadet #2B2D42 ΔE 0.048
- Charcoal #264653 ΔE 0.049
- Dark Grey Blue #29465B ΔE 0.057
Use #123A46 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.