#01374D
Closest named color: Midnight Green (#073B4C). oklch(31.7% 0.064 232.5), rgb(1, 55, 77).
Aa
White text reads best on this color (12.68:1).
About this color
#01374D is a dark, muted blue. In OKLCH its lightness is 32%, its chroma 0.064 and its hue 232°. Its hue sits on the cool side of the wheel. The nearest named color is Midnight Green (#073B4C), ΔE 0.015 away. White text reads best on it, at 12.68:1.
| Hue family | Blues |
| Lightness | dark (32%) |
| Chroma | muted (0.064) |
| Temperature | cool |
| Nearest name | Midnight Green (#073B4C) |
| Black text | 1.65:1 |
| White text | 12.68:1 |
Values
| HEX | #01374D |
| RGB | rgb(1, 55, 77) |
| HSL | hsl(197, 97%, 15%) |
| OKLCH | oklch(31.7% 0.064 232.5) |
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 #01374D | 12.68:1 | AAA | Lc -101.7 | Preferred for body text |
| Black text on #01374D | 1.65:1 | Fails | Lc 0.0 | Not readable |
| #01374D text on white | 12.68:1 | AAA | Lc 98.3 | Preferred for body text |
| #01374D text on black | 1.65:1 | 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 950.
-
Step 50
50
#EFF7FB
oklch(97.1% 0.01 228.9)
-
Step 100
100
#DCEDF6
oklch(93.6% 0.022 230.5)
-
Step 200
200
#BEDFF1
oklch(88.5% 0.043 231.8)
-
Step 300
300
#8ECAEA
oklch(80.9% 0.076 232.2)
-
Step 400
400
#40ADDF
oklch(70.7% 0.121 232.2)
-
Step 500
500
#0095CA
oklch(63% 0.13 232.7)
-
Step 600
600
#007EAB
oklch(55.7% 0.114 232.4)
-
Step 700
700
#006990
oklch(49% 0.101 232.9)
-
Step 800
800
#005677
oklch(42.6% 0.088 233.1)
-
Step 900
900
#004864
oklch(37.8% 0.078 232.8)
-
Step 950
950 (this color)
#01374D
oklch(31.7% 0.064 232.5)
#01374D 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) | #2C364E | 0.041 |
| Deuteranopia (no green cones) | #22304D | 0.034 |
| Tritanopia (no blue cones) | #003D3F | 0.037 |
| Achromatopsia (no color) | #333333 | 0.064 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #01374D
#01374D
oklch(31.7% 0.064 232.5)
- #4B280F
#4B280F
oklch(31.8% 0.064 53.5)
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 #01374D, closest first.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Midnight Green #073B4C ΔE 0.015
- Dark Blue Grey #1F3B4D ΔE 0.029
- Prussian Blue #1D3557 ΔE 0.031
- Gunmetal #293241 ΔE 0.041
- Space Cadet #2B2D42 ΔE 0.049
- Marine #042E60 ΔE 0.049
- Marine Blue #01386A ΔE 0.052
- Onyx #343A40 ΔE 0.059
Use #01374D 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.