#C5E978
Closest named color: Pistachio (#C0FA8B). oklch(88.4% 0.146 123.9), rgb(197, 233, 120).
Aa
Black text reads best on this color (15.30:1).
About this color
#C5E978 is a light, vivid yellow. In OKLCH its lightness is 88%, its chroma 0.146 and its hue 124°. Its hue sits between the warm and cool halves of the wheel. The nearest named color is Pistachio (#C0FA8B), ΔE 0.042 away. Black text reads best on it, at 15.30:1.
| Hue family | Yellows |
| Lightness | light (88%) |
| Chroma | vivid (0.146) |
| Temperature | in between |
| Nearest name | Pistachio (#C0FA8B) |
| Black text | 15.30:1 |
| White text | 1.37:1 |
Values
| HEX | #C5E978 |
| RGB | rgb(197, 233, 120) |
| HSL | hsl(79, 72%, 69%) |
| OKLCH | oklch(88.4% 0.146 123.9) |
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 #C5E978 | 1.37:1 | Fails | Lc -20.7 | Dividers and decoration only |
| Black text on #C5E978 | 15.30:1 | AAA | Lc 85.6 | Fine for body text |
| #C5E978 text on white | 1.37:1 | Fails | Lc 18.1 | Dividers and decoration only |
| #C5E978 text on black | 15.30:1 | AAA | Lc -85.4 | Fine for body text |
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 200.
-
Step 50
50
#F2F9E6
oklch(97.2% 0.026 123.4)
-
Step 100
100
#E2F1C9
oklch(93.7% 0.055 124.2)
-
Step 200
200 (this color)
#C5E978
oklch(88.4% 0.146 123.9)
-
Step 300
300
#A8D42C
oklch(81% 0.188 124)
-
Step 400
400
#8AB100
oklch(70.6% 0.175 124)
-
Step 500
500
#769800
oklch(63.1% 0.157 124)
-
Step 600
600
#638000
oklch(55.7% 0.138 124)
-
Step 700
700
#536B00
oklch(49% 0.121 123.6)
-
Step 800
800
#435800
oklch(42.7% 0.106 124.1)
-
Step 900
900
#374900
oklch(37.6% 0.094 124.1)
-
Step 950
950
#202B00
oklch(26.9% 0.066 123.3)
#C5E978 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) | #F4DD6E | 0.065 |
| Deuteranopia (no green cones) | #EFDC7E | 0.065 |
| Tritanopia (no blue cones) | #CCE0CF | 0.118 |
| Achromatopsia (no color) | #DCDCDC | 0.146 |
Harmonies
Hue rotations in OKLCH that keep this color's lightness and chroma.
Complementary
The opposite hue (180°).
- #C5E978
#C5E978
oklch(88.4% 0.146 123.9)
- #E2CEFF
#E2CEFF
oklch(88.3% 0.07 303.6)
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 #C5E978, closest first.
No curated palette has a color within ΔE 0.04 of #C5E978.
Similar named colors
The eight closest entries in our named color list, with their ΔE distance.
- Pistachio #C0FA8B ΔE 0.042
- Washed Out Green #BCF5A6 ΔE 0.049
- Pale Light Green #B1FC99 ΔE 0.051
- Celery #C1FD95 ΔE 0.051
- Pear #CBF85F ΔE 0.052
- Light Yellow Green #CCFD7F ΔE 0.053
- Light Pea Green #C4FE82 ΔE 0.053
- Pale Lime #BEFD73 ΔE 0.055
Use #C5E978 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.